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Finding the Fourth Proportional to 176,153.60, 264,376.20 and 81,529.40

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Solution

The fourth proportional to 176,153.60, 264,376.20 and 81,529.40 is: 122,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,153.60 : 264,376.20 = 81,529.40 : x
  2. Step 2: Convert to fraction form
    176,153.60/264,376.20 = 81,529.40/x
  3. Step 3: Cross multiply
    176,153.60x = 264,376.20 × 81,529.40
  4. Step 4: Simplify right side
    176,153.60x = 21,554,432,960.28
  5. Step 5: Solve for x
    x = 21,554,432,960.28/176,153.60
  6. Step 6: Final answer
    x = 122,361.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.